VmWare Esxi 5.0 - P2V VM problem

Hello, I made a P2V from a WinSrv2012 to a VmWare Infrastructure hosted in another Server Farm.
Destination Infrastructure: VMware ESXi 5.0 Update 1 (64bits)
Conversion by: VMware vCenter Converter Standalone 5.5.0 - Build 1362012
VSphere Client: 5.0.0. build 623373
The Problem is that if i click with my VM or vSphere client Tabs i receive "an internal error occurred in vSphere client" and i got logs attached.

I can right click on my VM but cannot see tabs.
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Does it happen from All machines you are trying to access this Host?
Can you confirm by trying to access the host from another machine using vSphere client?
pcss-1Author Commented:
There's only 1 machine at this moment.
What is the OS of the machine where you have installed the vSphere client?
There are lot of reasons why this could happen. Have you installed .Net 3.5 and above on the machine that's running vSphere client.
The logs give an error of

Error occurred in the vSphere Client.
Details: Object reference not set to an instance of an object
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pcss-1Author Commented:
O/S is Win 7 X64.
There's .Net 4.5.1 installed.
Sorry about the statement ".Net 3.5 and above"

The KB says it needs version 3.5. May be 4.5 is creating the issue.
Can you downgrade the .Net version?

Also can you restart the management services on the ESXi host if its an option by going to ESXi DCUI console>Troubleshooting options?

I would also suggest you to check if there are any firewalls which are active on the Windows 7 machine.
pcss-1Author Commented:
OK, i've downgraded to .Net 3.5.30729.5420 (As shown in my register).
I've restarted the entire host.
No result.

I've re-istalled vSphere.
No result.
Is it possible to spin up a Windows 2008 server to install a vSphere client? Or any other machine from where you can try this?
I have seen vSphere client giving trouble on Windows 7 machines before.
pcss-1Author Commented:
Yes, I've installed on a Win Srv 2012....and it works!!!!
So the problem is the Win7 x64 Machine.
But....how can i solve it?
Sometimes the OS will be incompatible and sometimes the supporting modules. We always usually run vSphere client on the server OS. It might happen because of many reasons.
You will have to troubleshoot every dependency package that is used by vSphere client to run.  Instead i would recommend you to run a Server OS with very minimum Resources just for management. If you have a support agreement you can also raise a concern with VMware so they can help you solve the issue.

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